Over a two-month period, contributed backend enhancements to the ruby/ruby and rubygems/rubygems repositories, focusing on improving gem name suggestion accuracy and error messaging. Replaced Bundler::SimilarityDetector with DidYouMean::SpellChecker to deliver more relevant suggestions when users entered non-existent gem names, and refactored related messaging for clarity. Expanded and stabilized RSpec test coverage to validate new behaviors and prevent regressions, while performing RuboCop cleanups to maintain consistent coding standards. Leveraged Ruby and Ruby on Rails to align error handling and user experience across repositories, ensuring that developers received clearer guidance and reducing troubleshooting time when resolving missing gem issues.